@mixin component-border {
  border: 1px solid #bbbbbb;
  box-sizing: border-box;
}

@mixin sidbar {
  position: absolute;
  top: calc(50% - 26px);
  padding: 15px 8px;
  border: 1px solid #ccc;
  background: #f9f9f9;
  color: #999;
  text-align: center;
  cursor: pointer;
}


